Procedure

Give the range of time.




Follow the given parameter.




Symbols	Component	Values
Vin	Supply Voltage	230V
R	resistance	100ohms
R1	resistance	200ohms
R2	variable resistance	1000-10,000ohms
Load	resistance	1000ohms
Vgt of scr	Maximum voltage	4V




Run the circuit for each time when the value of the given parameter was fixed.




See the voltage and current channel and download the image for your reference.




Find alpha angle from the output channel.




Then Find the output voltage based on the given formula






Finally,Switch off the circuit.